Motor-cycle signal.



E. A. BECKER. I MOTOR CYCLE SIGNAL.

APPLICATION FILED APR, 8, i912.

Patented Jan. 4, 1916.

Emir. A. Brianna; OF'YMIVLWAUKEE, Wisconsin.

" MoToa-cYc E'srGivaL.

A special object of my invention is to provide a form of constructionwhich can be readily clamped upon the exhaust tube of a motor cycleinternal combustion engine, said tube being first provided with anaperture, which is subsequently closed by clamping the signalingmechanism thereon.

In the drawings Figure 1 is a side view of a motor cycle to which myinvention is applied. Fig. 2 is a detail sectional view of a portion ofthe exhaust pipe'with my improved signaling mechanism mounted thereon.Fig. 3 is a detail front'view of the same. Fig. 4 is a side elevation ofthe parts shown in Fig. 2, reversed inposition.

Like parts are identified by the same reference characters throughoutthe several views. 7

a the aperture 2.

' therefore follows that by opening the valve' The exhaust pipe 1 of amotor cycle engine is provided with an opening 2, through which a valve3 may be inserted, said valve being spoon-shape and adapted to fit theinterior wall of the tube 1, so as to' cover -The valve 3 is pivotallysecured at 5 to a semi-cylindrical member 6, to which a counterpartsemi-cylindrical member 7 is hinged at 8. The members 6 and 7 areprovided with clamping ears 10 adapted to be connected together by bolts11, whereby said members 6 and 7 may be bound upon the exhaust pipe 1.The memher 6 is provided with a port-12, communicating with a branchpipe 13. This port 12 registers with the opening 2 in the pipe 1 whenthe clamping members 6 and 7 are properly positioned on said pipe 1. It

3, gas will be permitted to pass. into the branch duct 13 from saidpipe 1. The valve 3 is arranged to open downwardly and par: tially orwholly across the passage in pipe "Specification of Letters Patent.

' Application filed-April 8, 1912. Serial No. 689,137.

. spring.

- vent at 21.

- l atentedil an. 4,1916.

'1, so as obstructtlie flowof gastherethrough 1mmed1ately below theopening 2 v anddirect the gas into branch pipe 13. The

hinge pin 5 of valve 3 is extendedat one end and bent downwardly andinwardly.

This constitutes a lever 15, which may be actuated from any suitablepoint by a fiexi-' vble connection 16, having a resilient section 17which preferably comprises acoiled Another'coiled spring 18 connects thelever 15 with a projection 19on theclamping member 6, whereby said leverwill be normally held with valve 3 in closed position.

A signal (preferably a whistle) is con nected with the branch pipe 13.The whistle illustrated comprises a tube20, having a A rod 22 extendsthrough the upper end of the tube 20 anddownwardly therein with valves23 and 24 thereon adapted to fit annular valve seats 25 and 26respectively. .These valves 23 and-24 are so disposed upon the rod 22that when one of them is in closed position, the other will be ,in openposition. They also permit. an intermediate adjustment with both valvesin open position, thus allowing for a variation in tone by increasing ordecreasing the length of the sounding column of air in the tubularcasing 20. The'upper end'of rod 22 is elbowed, forming a laterallyprojecting arm 30, which may be loosely attached to the connection 16,which slides through an eye in the arm 30 and operatesv valve 3;. A stop31 is adjustably mounted upon connection 16 in a position to engage andactuate arm 30 after the connection 16 has closed position. Byadditionally lifting the I connection 16, valve 23 will move'from itsseat, thereby providing an air column equal to the length of whistletube 20 and changing the tone. Another change of tone may be secured byan additional upward movement, sufficient to bring valve 24 to its seat.

. I attach great importance to the means above described for connectingthe signal to the exhaust pipe, since I am thus enabled to not onlyapply my invention to motor cycles in process of construction, but alsoto apply it to those al eady in use, it being merely necessaryto cut ahole in the exhaust pipe and cover the pipe at that point by theclamping members 6 and 7 properly the exhaust pipe a; d having a branchpipe in position to receive vapor discharged through said aperture, avalve pivotally connected with one of the clamping members and adaptedto be manipulated through the exhaust pipe aperture and to close withthe pressure upon the inner face of the pipe adjacent to the margin ofsaid aperture, said valve being shaped to fit the curved inner face ofthe wall of said pipe which serves as a seat, and a signal mounted onsaid branch pipe.

2. The combination with an exhaust pipe of an internal combustion motor,of a set of semi-cylindrical clamping members embracing said pipe, oneof said clamping members being provided with a branch duct and saidexhaustpipe being apertured to afford communication with said branchduct, a spoon-shaped valve pivoted to said last named clamping memberand located within the exhaust pipe with its margins seating with thepressure upon the wall of the exhaust pipe at the margins of saidaperture,

a valve operating lever, a flexible actuatingconnection therefor, and asignal connected with said exhaust duct; said valve being adapted to bemanipulated into position in the exhaust pipe through said aperture.

3. The combination with an exhaust pipe of an internal combustion motor,of a set of semi-cylindricalclamping members embracing said pipe, oneor' said clamping members being provided with a branch duct and saidexhaust pipe being aperturedto afford communication with said branchduct, a valve pivoted to said last named clamping member and adapted toclose the exhaust pipe aperture, said valve being located in said pipe,a valve operating lever, a flexible actuating connection therefor, and asignal connected with said exhaust duct, said signal comprising awhistle tube provided with a vent, a set of valves mounted in saidWhistle tube and adapted to be adjusted to lengthen or shorten the aircolumn in said tube, a valve actuating stem for the whistle valves, anda device secured to the actuating connections of the exhaust pipe valvein a position to engage and actuate the stem of the whistle valves,substantially as de scribed.

In testimony whereof I my signature in the presence of two Witnesses.

' EMIL A. BECKER. lVitnesses Lnvnnn'r'r C. WVHEELER, IRMA D. BREMER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of-Patents. Washington. D. C.

